An image decoding method according to the present invention may comprise the steps of: generating a merge candidate list of a current block; selecting one merge candidate from merge candidates included in the merge candidate list; and performing motion compensation of the current block on the basis of motion information of the selected merge candidate.
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2. The image decoding method of claim 1, wherein after decoding of the current block is completed, the motion information table is not updated with motion information of the current block.
3. The image decoding method of claim 1, wherein when the current block is positioned on a bottom right in the merge processing region, it is determined to update the motion information table with the motion information of the current block.
4. The image decoding method of claim 3, wherein, based on whether a motion information candidate identical to the motion information of the current block is present in the motion information table, it is determined whether to add the motion information of the current block to the motion information table.
5. The image decoding method of claim 4, wherein a determination of whether the motion information candidate is identical to the motion information of the current block is performed with at least one motion information candidate of which an index value is equal to or smaller than a threshold value, or of which the index value is equal to or greater than the threshold value.
6. The image decoding method of claim 4, wherein when the motion information candidate identical to the motion information of the current block is present, an index of the motion information candidate is updated with the largest value or the smallest value.
8. The image encoding method of claim 7, wherein after encoding of the current block is completed, the motion information table is not updated with motion information of the current block.
9. The image encoding method of claim 7, wherein when the current block is positioned on a bottom right in the merge processing region, it is determined to update the motion information table with the motion information of the current block.
10. The image encoding method of claim 9, wherein, based on whether a motion information candidate identical to the motion information of the current block is present in the motion information table, it is determined whether to add the motion information of the current block to the motion information table.
11. The image encoding method of claim 10, wherein a determination of whether the motion information candidate is identical to the motion information of the current block is performed with at least one motion information candidate of which an index value is equal to or smaller than a threshold value, or of which the index value is equal to or greater than the threshold value.
12. The image encoding method of claim 10, wherein when the motion information candidate identical to the motion information of the current block is present, an index of the motion information candidate is updated with the largest value or the smallest value.
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January 28, 2020
March 21, 2023
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